you can make it with a simple equation 100/distance = score multiplier so you will need to calculate how much your character need to travel to get the 100 score. the score here is the distance sometimes its not accurate so you will need to play with the score multiplier to get the 100 score.
On your Start UI you can add a Preloader for a progress bar, or a Label which you set it to Loading Counter.
Oh whatttttt. I never thought to pull a label in. Thank you so much. So simple haha. Also, sorry wesam, I shouldn't have made my question clearer